How to Repair Fine Scratches on the Windshield?

[TimothyRose]

Methods to repair fine scratches on the windshield include: 1. Polishing Removal: For small and shallow scratches, they can be removed through polishing; 2. Glass Scratch Repair Agent: Slowly apply the gel along the glass crack, patience is required to avoid uneven surfaces; 3. Toothpaste Scratch Removal: Apply a small amount of toothpaste to the scratch, wipe with a soft cloth, and then rinse with water. Currently, car windshields are generally made as a single large curved piece with certain arcs on all sides. This curved glass, whether in terms of the manufacturing process or the assembly fit, is a product that requires very high technical specifications.

[VanLeah]

I've been doing glass care at a car wash for five years, and I always assess the situation first when dealing with minor windshield scratches. For superficial scratches, we use specialized polishing compound with a rotary tool, but you have to be careful with the pressure. If the scratch is deeper than 0.5mm, we resort to resin filling, and cleanliness is crucial during the process. Honestly, DIY attempts are risky—I once saw a customer ruin their entire windshield by using toothpaste. I recommend keeping a glass cleaner on hand and gently wiping with a microfiber cloth. Prevention is key: avoid hard-bristle brushes when washing, and use a plastic scraper for snow removal in winter. If the scratch is in the driver's line of sight, immediate treatment is mandatory as nighttime glare can severely compromise visibility and safety.

[MacIsabelle]

Last time I dealt with the scratches on my SUV's windshield: I bought a glass repair kit online. The operation was actually quite simple—just thoroughly clean the glass, apply the repair solution, attach the curing film, and leave it in the sun for three hours. The cost was less than 50 yuan, and the results were quite noticeable. A reminder to everyone: when buying a kit, pay attention to the ingredients—those containing cerium dioxide have the best polishing effect. For deep scratches, don’t try to fix them yourself. Last year, a colleague’s hand slipped while DIYing, creating wavy marks, and ended up spending 800 yuan to replace the entire glass. Now, I’ve developed the habit of parking away from trees, as resin drips are the most common cause of scratches.

[ZoeRose]

As an auto detailing enthusiast, I've tried three repair methods. The simplest is using glass cleaner with abrasive particles, applying it in circular motions with a chamois cloth. A more professional approach involves using a glass repair pen, filling scratches like applying nail polish. For meticulous repairs, resin filling is used, requiring UV light curing. After repair, it's recommended to apply glass coating monthly to form a protective layer. Importantly, avoid using newspapers to clean glass, as the carbon black particles in ink can damage the glass surface more than sandpaper. In fact, minor scratches don't significantly affect safety but are mainly an eyesore.